Hardware Researcher – Commercial Quantum Computing

Science Led, Enterprise Driven – Accelerating Quantum Computing 

Quantinuum is the world’s largest integrated quantum company, pioneering powerful quantum computers and advanced software solutions. Quantinuum’s technology drives breakthroughs in materials discovery, cybersecurity, and next-gen quantum AI. With approximately 500 employees, including 370+ scientists and engineers, Quantinuum leads the quantum computing revolution across continents. 

We unite best-in-class software with high-fidelity hardware to accelerate quantum computing. With integrated full-stack technology, our world-class team is rapidly scaling quantum computing. 

Quantinuum recently secured $300m in funding, visit our news pages to learn more about this and other Quantinuum scientific breakthroughs and achievements: https://www.quantinuum.com/news

We are seeking a highly qualified Hardware Researcher to join our team building, maintaining, developing, and operating an H1-series quantum computer at RIKEN’s Wako campus. This machine will be part of a Japanese Ministry of Economy, Trade, and Industry project to explore the integrated use of quantum computers and classical supercomputers, such as RIKEN’s Fugaku device. The ideal candidate will have a broad and deep understanding of quantum computing, atomic physics, and/or technical operations and experience operating a quantum computer or similarly complex system or apparatus as part of a small team with global support.

• Operate, maintain, develop, and upgrade the H1-series quantum computer as part of a small team
• Oversight and responsibility for specific subsystems, e.g. laser, and functional capabilities, e.g. ion transport
• Support conceptualizing and executing operation and development plans

• Ph.D. (Physics, Engineering, Computer Science or related technical field preferred)
• 5 or more years of post-graduate experience (M.S. or Ph.D. inclusive)
• Ability to read, write, and verbally communicate technical topics in both English and Japanese
• Ability to travel abroad for training or other business needs

• Proven expertise in atomic physics systems, superconducting qubits, or other quantum computing platforms
• Experience with lasers, laser cooling, atom trapping, cryogenics, ultra-high vacuum systems, analog and digital electronics, laboratory hardware control, Python, physical modeling, and data analysis
• Strong documentation, technical writing, and presentation skills evidenced by peer-reviewed scientific publications
• Work authorization that does not now or in the future require sponsorship of a visa for employment authorization in Japan

• To access confidential information to carry out this job you will be requested to submit personal information to the U.S. government through Quantinuum upon your consent
• We expect multiple interviews with a combination of HR, hiring manager, and peer members
• Background check to verify academic and professional records will be required as part of the onboarding process

Location:  Tokyo, Japan

Quantinuum is the world’s leading integrated quantum computing company, formed in late 2021 by the combination of two leaders in the global ecosystem for quantum computing: Honeywell Quantum Solutions and Cambridge Quantum. Quantinuum’s mission is to accelerate the development of quantum computing and innovation of quantum technologies to deliver real-world quantum-enabled solutions for some of the most intractable problems that classical computers have not been able to solve.

What is in it for you?

Working alongside a highly talented team, with leading names in the quantum computing industry. We offer a highly competitive package, equity, a positive approach to flexible working, health insurance, commuting allowance, enhanced holidays.

About Us: https://quantinuum.co.jp/

Please note that employment with us is subject to successfully passing our pre-employment screening checks. We are an inclusive equal opportunity employer. You will be considered without regard to age, race, creed, color, national origin, ancestry, marital status, affectional or sexual orientation, gender identity or expression, disability, nationality, sex, or veteran status.